\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{amsthm}

\usepackage{epsfig}

\usepackage{natbib}
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\usepackage[tracking=true]{microtype}
\usepackage{ellipsis}
\usepackage{lmodern}

\usepackage[english]{babel}

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\usefonttheme{serif}
%\useinnertheme{circles}
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